JP7334169B2 - システムインパッケージアセンブリの電磁干渉からのシールド方法 - Google Patents
システムインパッケージアセンブリの電磁干渉からのシールド方法 Download PDFInfo
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- JP7334169B2 JP7334169B2 JP2020541930A JP2020541930A JP7334169B2 JP 7334169 B2 JP7334169 B2 JP 7334169B2 JP 2020541930 A JP2020541930 A JP 2020541930A JP 2020541930 A JP2020541930 A JP 2020541930A JP 7334169 B2 JP7334169 B2 JP 7334169B2
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Description
その結果、EMIシールドは通常、各セグメント化された部分の周りと、セグメント化トレンチ内を含むSIP全体に提供される。
本発明によって表される他の目的、特徴、および進歩と共に上記で列挙された目的および利点は、本発明の様々な可能な構成を表すことが意図される添付の図面を参照して説明される詳細な実施形態に関して、ここで提示される。本発明の他の実施形態および態様は、当業者の理解の範囲内であると認識される。
EMIシールドフィルムプリフォーム50は、電磁放射の少なくとも特定の周波数を効果的に減衰および/または反射することができる導電性の自己支持体であることが好ましい。EMIシールドは、入射エネルギーの反射および吸収のうちの1つ以上を含み得、本発明のシールドフィルムは、いずれかまたは両方の特性が可能であることが企図される。本発明において有用なEMIシールド材料は、0.1Ω*cm未満、好ましくは約2.0*10-6と0.1Ω*cmの間の体積抵抗率を示し、約5.0*10-6と1.0*10-2Ω*cmとの間であってもよい。「効果的なEMIシールド」とは、10MHz~10GHzで1~200dB/5umを意味する。
EMIシールドフィルムプリフォーム50は、単一のラミネートプロセスでSIP14に固定されてもよい。一実施形態では、EMIシールドフィルムプリフォーム50は、絶縁層18の外面19に対して、および任意選択でさらに基板16の側面17に対して真空ラミネートすることができる。真空ラミネーションは、好ましくは、トレンチ44内にコーティングを形成し、絶縁層18の外面19を覆い、任意に基板16の側面17を覆う。SIP14上への真空ラミネートEMIシールドフィルムプリフォーム50の好ましい配置を図6に示す。
いくつかの実施形態では、複数のSIPデバイスは、単一化の前のバッチプロセスで同時にEMIシールドされてもよい。基板に取り付けられ、複数のコンポーネントモジュールに描かれたコンポーネントのアレイ110が図9に示されている。EMIシールドフィルム150は、真空ラミネーションなどによってアレイ110上に積層されて、トレンチ144をコーティングし、誘電体アレイ118の外面119を覆う。アレイ110上へのEMIシールドフィルム150のラミネートは、SIP14に関して上述したように、単一のラミネーションプロセスで行ってもよい。EMIシールドフィルム150の任意のプレスおよび/または硬化を含むラミネートプロセスに続いて、複数のSIPデバイス114は、カットライン111でアレイ110およびEMIシールドフィルム150を切断することによってアレイ110から個別化され得る。このようにして、複数のSIPデバイス114は、単一のEMIシールドフィルムラミネーションプロセスを含む単一のバッチプロセスで作成され得る。
Claims (18)
- システムインパッケージアセンブリを電磁干渉からシールドする方法であって、システムインパッケージアセンブリは、基板、各コンポーネントモジュールが1つ以上のコンポーネントを含む基板上に取り付けられた複数のコンポーネントモジュール、基板上にコンポーネントを覆う絶縁体および隣接するコンポーネントモジュール間の絶縁体に形成されたトレンチを含み、トレンチは、10~100μmの最大幅を有し、前記方法は、
20~250℃の間で1GPa未満の引張弾性率を有する自己支持型EMIシールドフィルムプリフォームを提供すること、
自己支持型EMIシールドフィルムプリフォームを絶縁体の外面に対しておよびトレンチ内に真空ラミネートし、トレンチ内にコーティングおよび絶縁体の外面の覆いを形成すること、および
コーティングを少なくとも50MPaの引張弾性率に硬化させることを含む方法。 - 硬化前に、コーティングを絶縁体にプレスすることを含む、請求項1に記載のシステムインパッケージアセンブリをシールドする方法。
- 硬化前に、少なくとも50psiの力でコーティングを絶縁体の外面にプレスすることを含む、請求項2に記載のシステムインパッケージアセンブリをシールドする方法。
- プリフォームが、ポリマー樹脂マトリックス中に分散された導電性粒子状フィラーを含む、請求項1に記載のシステムインパッケージアセンブリをシールドする方法。
- 真空ラミネートする前に、プリフォームを少なくとも50℃に加熱することを含む、請求項1に記載のシステムインパッケージアセンブリをシールドする方法。
- 加熱されたプリフォームを絶縁体の外面に対して、およびトレンチ内に真空ラミネートするために、トレンチを真空にすることを含む、請求項1に記載のシステムインパッケージアセンブリをシールドする方法。
- コーティングを硬化することが、少なくとも60℃で、少なくとも10分間コーティングを加熱することを含む、請求項1に記載のシステムインパッケージアセンブリをシールドする方法。
- 硬化したコーティングが、20℃で少なくとも1GPaの引張弾性率を示す、請求項7に記載のシステムインパッケージアセンブリをシールドする方法。
- コーティングが実質的にトレンチを充填する、請求項1に記載のシステムインパッケージアセンブリをシールドする方法。
- システムインパッケージアセンブリを形成する方法であって、
基板のアクティブ面から間隔を置いて配置された導電性グラウンドプレーンと、グラウンドプレーンからアクティブ面に延びる導電性トレースとを有する基板を提供し、
基板のアクティブ面に複数のコンポーネントモジュールを取り付けて、基板の組み立てられた表面を形成し、ここで各コンポーネントモジュールは1つ以上のコンポーネントを含み、
基板の組み立てられた表面を誘電層に封入し、ここで誘電層は組み立てられた表面と外面との間に延び、
隣接するコンポーネントモジュールの間の誘電体層を通ってトレースまでのトレンチを形成し、トレンチは、10~100μmの間の最大幅を有し、
自己支持型EMIシールドフィルムプリフォームを誘電体層の外面に対しておよびトレンチ内に真空ラミネートし、トレースに接触するトレンチ内にコーティングおよび誘電体の外面に覆いを形成することを含み、自己支持型EMIシールドフィルムプリフォームが20~250℃で1GPa未満の引張弾性率を有する方法。 - コーティングを少なくとも50MPaの引張弾性率に硬化させることを含む、請求項10に記載のシステムインパッケージアセンブリを形成する方法。
- 少なくとも50psiの力でコーティングを誘電体層の外面にプレスすることを含む、請求項10に記載のシステムインパッケージアセンブリを形成する方法。
- 基板および誘電体層を切断することによって、複数のシステムインパッケージデバイスを単一化することを含む、請求項12に記載のシステムインパッケージアセンブリを形成する方法。
- 誘電体層に複数のトレンチを形成することを含み、各トレンチが1以上のモジュールの第2のセットから1以上のコンポーネントモジュールの第1のセットを描く、請求項13に記載のシステムインパッケージアセンブリを形成する方法。
- コーティングが実質的にトレンチを満たす、請求項10に記載のシステムインパッケージアセンブリを形成する方法。
- コーティングが導電性グラウンドプレーンに接触する、請求項10に記載のシステムインパッケージアセンブリを形成する方法。
- ハウジング、
無線データを受信する受信機、
無線データを送信する送信機、および
請求項10~16のいずれか1項に記載の方法によって得られたシステムインパッケージアセンブリを含むモバイルデバイスであって、システムインパッケージアセンブリは、
基板、
各コンポーネントモジュールが1つ以上のコンポーネントを含む基板上に取り付けられた複数のコンポーネントモジュール、
基板上にコンポーネントを覆う絶縁体、および
トレンチが、10~100μmの最大幅を有する隣接するコンポーネントモジュール間の絶縁体に形成されたトレンチ、および
絶縁体の外面を覆い、少なくとも50MPaの引張弾性率を有するトレンチ内のコーティングを含み、
システムインパッケージアセンブリは、ハウジングに取り付けられ、
システムインパッケージアセンブリの1以上のコンポーネントが少なくともプロセッサを含み、および
システムインパッケージアセンブリが少なくとも2つのコンポーネントモジュールを描く少なくとも1つのトレンチを含み、
トレンチを実質的に充填するコーティングが、電磁干渉を少なくとも10db減衰させるモバイルデバイス。 - ハウジング、
無線データを受信する受信機、
無線データを送信する送信機、および
システムインパッケージアセンブリを含むモバイルデバイスであって、システムインパッケージアセンブリは、
基板、
各コンポーネントモジュールが1つ以上のコンポーネントを含む基板上に取り付けられた複数のコンポーネントモジュール、
基板上にコンポーネントを覆う絶縁体、および
トレンチが、10~100μmの最大幅を有する隣接するコンポーネントモジュール間の絶縁体に形成されたトレンチ、および
20~250℃の間で1GPa未満の引張弾性率を有し、ポリマー樹脂マトリックス中に分散された導電性粒子状フィラーを含む自己支持型EMIシールドフィルムプリフォームから形成され、絶縁体の外面を覆い、少なくとも50MPaの引張弾性率を有するトレンチ内のコーティングを含み、
システムインパッケージアセンブリは、ハウジングに取り付けられ、
システムインパッケージアセンブリの1以上のコンポーネントが少なくともプロセッサを含み、および
システムインパッケージアセンブリが少なくとも2つのコンポーネントモジュールを描く少なくとも1つのトレンチを含み、
トレンチを実質的に充填するコーティングが、電磁干渉を少なくとも10db減衰させるモバイルデバイス。
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TWI787448B (zh) | 2022-12-21 |
US20210092884A1 (en) | 2021-03-25 |
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KR20200115463A (ko) | 2020-10-07 |
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TW201935575A (zh) | 2019-09-01 |
US10834858B2 (en) | 2020-11-10 |
EP3747049A4 (en) | 2021-10-27 |
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US11304346B2 (en) | 2022-04-12 |
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